I've done it with a lot of things, but seldom Columbos, I think. But there's at least one exception. I always liked those CBS Late Movie reruns (in spite of all the editing), and because of having insomnia I usually made it to the end and much later. The exception I can always think of is REQUIEM FOR A FALLING STAR. I started falling asleep right after Nora heard the news in the restaurant. (Since I'd never seen it before that I can think of, I thought her surprise - that it happened to Jean instead of Jerry - was for real.)